'ReferenceError: BigInt is not defined' due to the BigInt in v5.35.1 or newer version

[lukewang2018]

Bug report

What is the current behavior?

After we upgrade the version of webpack to be v5.35.1 or newer, we will get below errors. If the version is older than v5.35.0, it would be OK.
In fact, I already find the cause in the commit history. This issue is caused by this PR #13213 with this commit acfea9d by @sokra . In this commit, it's using BigInt which brings this issue.

Resolve error: ReferenceError: BigInt is not defined
    at Object.<anonymous> (xxx/node_modules/webpack/lib/ChunkGraph.js:42:22)
    at Object.<anonymous> (xxx/node_modules/webpack/lib/ChunkGraph.js:1672:3)
    at Module._compile (internal/modules/cjs/loader.js:711:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:722:10)
    at Module.load (internal/modules/cjs/loader.js:620:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:559:12)
    at Function.Module._load (internal/modules/cjs/loader.js:551:3)
    at Module.require (internal/modules/cjs/loader.js:658:17)
    at require (internal/modules/cjs/helpers.js:20:18)
    at Object.<anonymous> (xxx/node_modules/webpack/lib/Chunk.js:8:20)

If the current behavior is a bug, please provide the steps to reproduce.
Just need to update the version and check build log.

What is the expected behavior?
There should no such errors "Resolve error: ReferenceError: BigInt is not defined"

Other relevant information:
webpack version: v5.35.1 or newer
Node.js version: v12.15.0
Operating System: Mac v11.3.1
Additional tools: VS Code v1.33.1

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[alexander-akait]

Node.js version: v12.15.0

No, it means you have Node.js lower than 10.4.0, double check it node -v, minimum supported Node.js version is 10.13.0 https://github.com/webpack/webpack/blob/master/package.json#L108

[lukewang2018]

@alexander-akait no, I'm using node v12.15. I provided in the issue description.

And I just upgraded node to be v14.16.1, I still got the same issue.

$ node -v
v14.16.1

[alexander-akait]

create file.js put there const bigNumber = BigInt(0) and run node file.js

[alexander-akait]

Something wrong with Node.js in your dev env

[lukewang2018]

@alexander-akait thanks for your help. node file.js works with node v14.16.1.

I finally got the cause. it's due to the editor VSCode version. I just upgraded it from v1.33.1 to be v1.56.2 and it's ok now.

thanks again!